CaratHunter
Plans
Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2245001864

Certificate GIA 2245001864

Diamond specifications and retailer prices

From $7,531 SGD
$5,876 USD
As of October 28, 2026
Save $6,830 SGD (48%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $18,151 SGD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct 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 2245001864. Listed at 23 retailers as of October 28, 2026, with a 91% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245001864
Dimensions7.57 × 5.59 × 3.79 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.57 mm5.59 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245001864
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

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 28
Current: $9,198 SGD|Low: $7,531 SGD|High: $14,918 SGD|Avg: $9,459 SGD|-0.5%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 29, 2026
Retailer 17$7,531 SGD
Retailer 8$7,547 SGD
Retailer 4$8,035 SGD
Retailer 3$8,154 SGD
Retailer 14$8,348 SGD
Retailer 6$8,407 SGD
Retailer 18$8,489 SGD
Retailer 12$8,502 SGD
Retailer 10$8,569 SGD
Retailer 7$8,587 SGD
Retailer 9$8,857 SGD
Retailer 5$8,917 SGD
Retailer 1$9,198 SGD
Retailer 13$9,828 SGD
Retailer 11$9,872 SGD
Retailer 2$10,908 SGD
Retailer 16$11,182 SGD
Retailer 19$12,480 SGD
Retailer 15$14,362 SGD

22 data points across 19 retailers

23 retailers$7,531 SGD to $14,362 SGD

A
Cheapest Retailer
-
$7,531 SGD
$5,876 USD
A
Retailer 2
-
$7,547 SGD
HK$46,000 HKD
View
A
Retailer 3
-
$8,035 SGD
$6,269 USD
View
A
Retailer 4
-
$8,154 SGD
$6,362 USD
View
A
Retailer 5
-
$8,348 SGD
$6,513 USD
View
A
Retailer 6
-
$8,407 SGD
A$10,091 AUD
View
A
Retailer 7
-
$8,489 SGD
$6,623 USD
View
A
Retailer 8
-
$8,502 SGD
€6,317 EUR
View
A
Retailer 9
-
$8,569 SGD
$6,686 USD
View
Final sale: no returns
A
Retailer 10
-
$8,587 SGD
$6,700 USD
View
Retailer 11
-
$8,658 SGD
View
Price last confirmed 21 days ago
A
Retailer 12
-
$8,857 SGD
$6,910 USD
View
A
Retailer 13
-
$8,917 SGD
$6,958 USD
View
A
Retailer 14
-
$9,198 SGD
£5,651 GBP
View
Retailer 15
-
$9,690 SGD
$7,560 USD
View
Price last confirmed 21 days ago
A
Retailer 16
-
$9,828 SGD
$7,668 USD
View
Retailer 17
-
$9,872 SGD
A$11,850 AUD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$10,021 SGD
A$12,028 AUD
View
B+
Retailer 19
-
$10,908 SGD
$8,510 USD
View
B+
Retailer 20
-
$11,182 SGD
€8,309 EUR
View
B+
Retailer 21
-
$12,480 SGD
ZAR 157,302 ZAR
View
B+
Retailer 22
-
$14,362 SGD
£8,823 GBP
View
Most Expensive
NZ Jewellers
d72e9f87-f2b0-40af-9c57-de40d7e9850d · Sep 21
$18,151 SGD
$14,162 USD
View
Price last confirmed 38 days ago
22 more retailers have this diamond
Prices start from $7,531 SGDSave up to $6,830 SGD

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
1.51ct Radiant
$7,531 SGD