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Radiant|Natural|GIA

1.70ct F SI2 Radiant Natural Diamond

EX • F/SI2 • GIA 6551511116

Certificate GIA 6551511116

Diamond specifications and retailer prices

From $12,888 NZD
SGD 9,799 SGD
As of October 31, 2026
Save $1,470 NZD (10%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,505 NZD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551511116. Listed at 10 retailers as of October 31, 2026, with a relatively tight 11% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.70
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551511116
Dimensions8.21 × 6.13 × 4.14 mm
L/W Ratio1.34
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
8.21 mm6.13 mm1.70 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551511116
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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: $12,888 NZD|Low: $10,920 NZD|High: $21,624 NZD|Avg: $14,461 NZD|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 13, 2026
Retailer 2$10,920 NZD
Retailer 8$11,784 NZD
Retailer 3$12,397 NZD
Retailer 12$12,560 NZD
Retailer 1$12,888 NZD
Retailer 13$13,282 NZD
Retailer 11$13,525 NZD
Retailer 9$13,931 NZD
Retailer 5$14,357 NZD
Retailer 4$14,963 NZD
Retailer 6$15,862 NZD
Retailer 10$20,664 NZD
Retailer 7$21,624 NZD

19 data points across 13 retailers

10 retailers$12,888 NZD to $14,357 NZD

Retailer 1
-
$10,920 NZD
HK$48,000 HKD
Price last confirmed 31 days ago
Retailer 2
-
$12,560 NZD
SGD 9,550 SGD
View
Price last confirmed 30 days ago
A
Retailer 3
-
$12,888 NZD
SGD 9,799 SGD
View
B+
Retailer 4
-
$14,357 NZD
A$12,428 AUD
View
Retailer 5
-
$14,652 NZD
$8,244 USD
View
Price last confirmed 32 days ago
Retailer 6
-
$14,878 NZD
$8,371 USD
View
Price last confirmed 32 days ago
Retailer 7
-
$16,906 NZD
$9,512 USD
View
Price last confirmed 34 days ago
Retailer 8
-
$20,664 NZD
£9,155 GBP
View
Price last confirmed 32 days ago
Retailer 9
-
$21,624 NZD
£9,580 GBP
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
5a224694-c765-4bb5-b3b2-78268a84c4e3 · Sep 30
$24,505 NZD
$13,788 USD
View
Price last confirmed 33 days ago
9 more retailers have this diamond
Prices start from $12,888 NZDSave up to $1,470 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
1.70ct Radiant
$12,888 NZD