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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2564014021

Certificate GIA 2564014021

Diamond specifications and retailer prices

From $8,610 SGD
As of November 4, 2026
Save $6,535 SGD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $16,287 SGD at NZ Jewellers · As of September 28, 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 2564014021. Listed at 14 retailers as of November 4, 2026, with a 76% 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564014021
Dimensions8.03 × 5.67 × 3.84 mm
L/W Ratio1.42
Girdle conditionThick
Top View
8.03 mm5.67 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564014021
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.7%

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 4
Current: $10,189 SGD|Low: $7,062 SGD|High: $15,186 SGD|Avg: $10,026 SGD|+12.2%
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
November 7, 2026
Retailer 6$7,431 SGD
Retailer 3$8,610 SGD
Retailer 2$9,112 SGD
Retailer 14$9,112 SGD
Retailer 15$9,189 SGD
Retailer 5$9,374 SGD
Retailer 13$9,872 SGD
Retailer 7$9,946 SGD
Retailer 12$10,023 SGD
Retailer 1$10,189 SGD
Retailer 4$10,449 SGD
Retailer 8$10,560 SGD
Retailer 9$11,838 SGD
Retailer 10$13,294 SGD
Retailer 11$15,145 SGD

16 data points across 15 retailers

14 retailers$8,610 SGD to $15,145 SGD

B+
Cheapest Retailer
-
$8,610 SGD
B+
Retailer 2
-
$9,112 SGD
View
B+
Retailer 3
-
$9,112 SGD
View
Final sale: no returns
B+
Retailer 4
-
$9,189 SGD
View
Retailer 5
-
$9,374 SGD
View
Price last confirmed 40 days ago
B+
Retailer 6
-
$9,872 SGD
View
B+
Retailer 7
-
$10,023 SGD
View
B+
Retailer 8
-
$10,189 SGD
View
B
Retailer 9
-
$10,449 SGD
View
B+
Retailer 10
-
$10,560 SGD
View
B
Retailer 11
-
$11,838 SGD
View
B
Retailer 12
-
$13,294 SGD
View
B
Retailer 13
-
$15,145 SGD
View
Most Expensive
NZ Jewellers
93c09131-28a5-4d7a-821b-29a8cc6de063 · Sep 28
$16,287 SGD
$12,708 USD
View
Price last confirmed 40 days ago
13 more retailers have this diamond
Prices start from $8,610 SGDSave up to $6,535 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
$8,610 SGD