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Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2377479568

Certificate GIA 2377479568

Diamond specifications and retailer prices

From $14,234 SGD
$11,134 USD
As of October 29, 2026
Save $4,765 SGD (25%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $18,999 SGD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 2377479568. Listed at 4 retailers as of October 29, 2026, with prices from $14,234 to $18,999, a $4,765 spread on the same certified stone. 77 Diamonds lists it at $18,999. 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 2377479568
Dimensions7.38 × 5.60 × 3.86 mm
L/W Ratio1.32
Top View
7.38 mm5.60 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2377479568
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $18,999 SGD|Low: $14,103 SGD|High: $19,095 SGD|Avg: $16,560 SGD|+1.7%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2$14,234 SGD
77 Diamonds$18,999 SGD

29 data points across 2 retailers

4 retailers$14,234 SGD to $18,999 SGD

B+
Cheapest Retailer
-
$14,234 SGD
$11,134 USD
B
Retailer 2
-
$15,152 SGD
$11,852 USD
View
B
Retailer 3
-
$15,526 SGD
A$18,684 AUD
View
Most Expensive
B
77 Diamonds
RADZVYRPAAA7 · Oct 30
$18,999 SGD
£11,702 GBP
View
3 more retailers have this diamond
Prices start from $14,234 SGDSave up to $4,765 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
$14,234 SGD