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Radiant|Natural|GIA

1.51ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 6555434666

Certificate GIA 6555434666

Diamond specifications and retailer prices

From $5,233 SGD
HK$31,900 HKD
As of October 29, 2026
Save $5,848 SGD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $11,082 SGD at MOH London · As of October 29, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555434666. Listed at 12 retailers as of October 29, 2026, with prices from $5,233 to $11,082, a $5,848 spread on the same certified stone. MOH London lists it at $11,082. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6555434666
Dimensions7.66 × 5.66 × 3.83 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.66 mm5.66 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6555434666
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $11,082 SGD|Low: $5,233 SGD|High: $12,823 SGD|Avg: $7,464 SGD|-2.0%
MOH London
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 30, 2026
Retailer 10$5,233 SGD
Retailer 8$5,643 SGD
Retailer 9$5,926 SGD
Retailer 7$6,156 SGD
Retailer 11$6,255 SGD
Retailer 3$6,292 SGD
Retailer 13$6,306 SGD
Retailer 2$6,630 SGD
Retailer 5$7,046 SGD
Retailer 6$8,106 SGD
Retailer 12$10,998 SGD
MOH London$11,082 SGD
Retailer 4$12,125 SGD

40 data points across 13 retailers

12 retailers$5,233 SGD to $11,082 SGD

A
Cheapest Retailer
-
$5,233 SGD
HK$31,900 HKD
A
Retailer 2
-
$5,643 SGD
$4,403 USD
View
A
Retailer 3
-
$5,926 SGD
$4,623 USD
View
A
Retailer 4
-
$6,156 SGD
$4,803 USD
View
A
Retailer 5
-
$6,255 SGD
$4,880 USD
View
Final sale: no returns
A
Retailer 6
-
$6,292 SGD
$4,909 USD
View
A
Retailer 7
-
$6,306 SGD
$4,920 USD
View
A
Retailer 8
-
$6,630 SGD
£4,073 GBP
View
A
Retailer 9
-
$7,046 SGD
A$8,458 AUD
View
A
Retailer 10
-
$8,106 SGD
€6,023 EUR
View
B+
Retailer 11
-
$10,998 SGD
$8,581 USD
View
Most Expensive
B+
MOH London
C9FCA304D · Oct 29
$11,082 SGD
£6,808 GBP
View
11 more retailers have this diamond
Prices start from $5,233 SGDSave up to $5,848 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
$5,233 SGD