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Radiant|Natural|GIA

1.50ct G SI1 Radiant Natural Diamond

EX • G/SI1 • GIA 1555573256

Certificate GIA 1555573256

Diamond specifications and retailer prices

From $10,852 NZD
SGD 8,251 SGD
As of October 31, 2026
Save $14,909 NZD (58%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $25,761 NZD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555573256. Listed at 25 retailers as of October 31, 2026, with prices from $10,852 to $25,761, a $14,909 spread on the same certified stone. 77 Diamonds lists it at $25,761. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555573256
Dimensions7.66 × 5.72 × 3.86 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.66 mm5.72 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555573256
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $25,761 NZD|Low: $9,816 NZD|High: $25,761 NZD|Avg: $13,978 NZD|+116.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 14$9,816 NZD
Retailer 6$10,852 NZD
Retailer 7$11,407 NZD
Retailer 8$12,119 NZD
Retailer 17$12,358 NZD
Retailer 9$12,548 NZD
Retailer 3$13,405 NZD
Retailer 15$14,259 NZD
Retailer 13$14,310 NZD
Retailer 5$15,001 NZD
Retailer 4$18,303 NZD
Retailer 12$18,452 NZD
Retailer 2$19,613 NZD
Retailer 16$20,668 NZD
Retailer 10$20,764 NZD
Retailer 11$20,898 NZD
77 Diamonds$25,761 NZD

26 data points across 17 retailers

25 retailers$10,852 NZD to $25,761 NZD

Retailer 1
-
$9,191 NZD
HK$40,400 HKD
Price last confirmed 13 days ago
Retailer 2
-
$9,816 NZD
₹525,993 INR
View
Price last confirmed 12 days ago
Retailer 3
-
$10,289 NZD
$5,789 USD
View
Price last confirmed 18 days ago
Retailer 4
-
$10,577 NZD
SGD 8,042 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$10,852 NZD
SGD 8,251 SGD
View
B+
Retailer 6
-
$11,282 NZD
$6,348 USD
View
Retailer 7
-
$11,286 NZD
$6,350 USD
View
Price last confirmed 11 days ago
Retailer 8
-
$11,407 NZD
$6,418 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$12,119 NZD
A$10,491 AUD
View
Price last confirmed 29 days ago
Retailer 10
-
$12,358 NZD
$6,953 USD
View
Price last confirmed 13 days ago
Retailer 11
-
$12,548 NZD
$7,060 USD
View
Price last confirmed 16 days ago
B+
Retailer 12
-
$12,590 NZD
A$10,898 AUD
View
Retailer 13
-
$12,643 NZD
$7,114 USD
View
Price last confirmed 15 days ago
Retailer 14
-
$12,855 NZD
$7,233 USD
View
Price last confirmed 13 days ago
Retailer 15
-
$14,259 NZD
$8,023 USD
View
Price last confirmed 12 days ago
Retailer 16
-
$15,001 NZD
ZAR 136,357 ZAR
View
Price last confirmed 16 days ago
Retailer 17
-
$15,315 NZD
$8,617 USD
View
Price last confirmed 62 days ago
Retailer 18
-
$18,303 NZD
£8,109 GBP
View
Price last confirmed 12 days ago
Retailer 19
-
$18,452 NZD
£8,175 GBP
View
Price last confirmed 11 days ago
B
Retailer 20
-
$19,613 NZD
$11,035 USD
View
Retailer 21
-
$20,668 NZD
$11,629 USD
View
Price last confirmed 12 days ago
B
Retailer 22
-
$20,764 NZD
$11,683 USD
View
B
Retailer 23
-
$20,898 NZD
$11,759 USD
View
B
Retailer 24
-
$21,049 NZD
A$18,220 AUD
View
Most Expensive
C
77 Diamonds
RADZ3QGUKXE8 · Nov 2
$25,761 NZD
£11,413 GBP
View
24 more retailers have this diamond
Prices start from $10,852 NZDSave up to $14,909 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.50ct Radiant
$10,852 NZD