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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6522977444

Certificate GIA 6522977444

Diamond specifications and retailer prices

From $8,091 SGD
As of November 6, 2026
Save $10,135 SGD (56%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: $18,226 SGD at NZ Jewellers · As of November 5, 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 H 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 6522977444. Listed at 30 retailers as of November 5, 2026, with prices from $8,091 to $18,226, a $10,135 spread on the same certified stone. NZ Jewellers lists it at $18,226. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522977444
Dimensions7.64 × 5.66 × 3.77 mm
L/W Ratio1.35
Top View
7.64 mm5.66 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6522977444
Side View
Table 67.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

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: Nov 6
Current: $10,189 SGD|Low: $8,610 SGD|High: $15,369 SGD|Avg: $11,289 SGD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5$8,610 SGD
Retailer 8$8,712 SGD
Retailer 1$10,189 SGD
Retailer 2$10,212 SGD
Retailer 7$10,454 SGD
Retailer 3$11,838 SGD
Retailer 4$13,294 SGD
Retailer 6$15,145 SGD

37 data points across 8 retailers

30 retailers$8,091 SGD to $18,226 SGD

B+
Cheapest Retailer
-
$8,091 SGD
B+
Retailer 2
-
$8,455 SGD
View
B+
Retailer 3
-
$8,483 SGD
View
B+
Retailer 4
-
$8,610 SGD
View
B+
Retailer 5
-
$8,712 SGD
View
Final sale: no returns
B+
Retailer 6
-
$8,746 SGD
View
B+
Retailer 7
-
$8,997 SGD
View
B+
Retailer 8
-
$9,112 SGD
View
Retailer 9
-
$9,112 SGD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$9,189 SGD
View
B
Retailer 11
-
$9,706 SGD
View
B+
Retailer 12
-
$9,872 SGD
View
B+
Retailer 13
-
$10,023 SGD
View
B+
Retailer 14
-
$10,079 SGD
View
B+
Retailer 15
-
$10,189 SGD
View
B+
Retailer 16
-
$10,198 SGD
View
B+
Retailer 17
-
$10,212 SGD
View
B
Retailer 18
-
$10,439 SGD
View
Retailer 19
-
$10,454 SGD
View
Price last confirmed 16 days ago
B
Retailer 20
-
$10,881 SGD
View
B
Retailer 21
-
$10,881 SGD
View
B
Retailer 22
-
$11,006 SGD
View
B
Retailer 23
-
$11,240 SGD
View
B
Retailer 24
-
$11,391 SGD
View
B
Retailer 25
-
$11,838 SGD
View
Retailer 26
-
$12,001 SGD
View
Price last confirmed 15 days ago
B
Retailer 27
-
$12,023 SGD
View
B
Retailer 28
-
$13,294 SGD
View
B
Retailer 29
-
$15,145 SGD
View
Most Expensive
B
NZ Jewellers
187c7af1-6df5-4fe3-81b8-deb2d3b7cfab · Nov 5
$18,226 SGD
$14,221 USD
View
29 more retailers have this diamond
Prices start from $8,091 SGDSave up to $10,135 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.

B+
1.51ct Radiant
$8,091 SGD