Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 7551892979

Certificate GIA 7551892979

Diamond specifications and retailer prices

From $14,319 NZD
$8,070 USD
As of October 30, 2026
Save $10,921 NZD (43%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $25,239 NZD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551892979. Listed at 11 retailers as of October 30, 2026, with prices from $14,319 to $25,239, a $10,921 spread on the same certified stone. NZ Jewellers lists it at $25,239. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551892979
Dimensions7.99 × 5.68 × 3.76 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
7.99 mm5.68 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551892979
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCuletDepth 66.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $16,577 NZD|Low: $13,880 NZD|High: $23,935 NZD|Avg: $17,324 NZD|-0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$14,319 NZD
Retailer 2$14,925 NZD
Retailer 5$15,142 NZD
Retailer 8$15,144 NZD
Retailer 1$16,577 NZD
Retailer 7$16,657 NZD
Retailer 6$18,265 NZD
Retailer 9$18,928 NZD
Retailer 3$18,947 NZD
Retailer 4$23,777 NZD

41 data points across 10 retailers

11 retailers$14,319 NZD to $25,239 NZD

B+
Cheapest Retailer
-
$14,319 NZD
$8,070 USD
B+
Retailer 2
-
$14,925 NZD
CA$11,683 CAD
View
B+
Retailer 3
-
$15,142 NZD
$8,534 USD
View
Final sale: no returns
B+
Retailer 4
-
$16,405 NZD
$9,246 USD
View
B+
Retailer 5
-
$16,577 NZD
£7,357 GBP
View
B+
Retailer 6
-
$16,657 NZD
$9,388 USD
View
B+
Retailer 7
-
$18,265 NZD
$10,294 USD
View
B
Retailer 8
-
$18,928 NZD
$10,668 USD
View
B+
Retailer 9
-
$18,947 NZD
€10,170 EUR
View
B
Retailer 10
-
$23,777 NZD
£10,552 GBP
View
Most Expensive
B
NZ Jewellers
aec22f1a-bd22-49de-8010-c898d40344e1 · Oct 30
$25,239 NZD
$14,225 USD
View
10 more retailers have this diamond
Prices start from $14,319 NZDSave up to $10,921 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.

B+
1.50ct Radiant
$14,319 NZD